A walk along the famous boulevard, visiting sites associated with Mendelssohn, with commentary by Heinrich Heine . With Dorothee Nolte. In one of his “Letters from Berlin,” Heinrich Heine offers an amusing and sharp-tongued account of the goings-on on Unter den Linden: With the “Lindenrolle” from 1820 and its accompanying text, you can experience the grand boulevard just as it appeared to strollers and the Mendelssohn family in the early 19th century.